1.Link BC is 6 mm thick, has a width w= 25 mm, and is made of a steel with a 480 MPa ultimate strength in tension. What is the safety factor used if the structure shown was designed to support a 16 kN load P ?

2.Water at 150 degrees in a beaker is placed in an airtight chamber. Air is gradually pumped out of the container. What reduction below atmospheric pressure of 14.7 psi must be achieved before water boils?

3) The beam AE in the figure below is subjected to a system of coplanar forces. Determine the magnitude, direction, and location on the beam of a resultant force which is equivalent to the given system of forces.

4.A first order reaction occurs in a PFR at the rate of 2.1 hr^-1. The reactor volume is 1400L and flow is 15 gpm. If the influent concentration is 200 mg/L, then what is the effluent concentration?

Determine the minimum distance from the diversion that a : A temporary diversion has been constructed on a highway of +4 percent gradient due to major repairs that are being undertaken on a bridge. The maximum speed allowed on the diversion is 10 mph |

Compute the true static height : A Kennedy half dollar has a mass of 1.150 X 10-2 Kg. The coins is a mixture of silver and cooper, and in water weights 0.1011 N. What is the mass of the silver? |

What is the concentration of bod in the jackson river before : The James Rives flows in from the East at 320 m^3/min and joins the Jackson River flowing at 605 m^3/min just outside the town of Charlotte, NC. The concentration of BOD in the James River is 14 mg/L |

Perform multiple regression with real financial data : Perform multiple regression with real financial data - estimate the Fama - French 3-factor model for a list of twenty stocks and interpret the regression output. |

Determine the magnitude direction and location on the beam : A first order reaction occurs in a PFR at the rate of 2.1 hr^-1. The reactor volume is 1400L and flow is 15 gpm. If the influent concentration is 200 mg/L, then what is the effluent concentration? |

Calculate the mass of the green house gas and ozone : Calculate the mass of the green house gas and ozone depleting substance CFC-11 (chemical Formula = CCl3F) in the atmosphere. Use units of GtC (giga tonnes carbon). Production of this substance is now banned and mixing ratios are slowly decreasing wit.. |

Determine if the as-drawn wire will break during the process : A 0.02wt% C steel is to be carburized at 1200°C in 4 hrs with a point 0.6mm beneath the surface reaching 0.45wt%C. calculate the carbon content required at the surface of the steel. |

Downstream response to imposed flow transformation : Write a paragraph ( 1 paragraph for i, ii, iii, & iv together) summarizing the following Holistic Methodologies Methods used to analyze environmental flow requirements.) |

Terminal docks include casual workers who are hired tempor : In an Less-than-Truckload trucking company, terminal docks include casual workers who are hired temporarily to account for peak loads. At the Omah |

## Determine what is the length of the smooth pipeStraight pipe, pump head=100 ft, pipe diameter=4inches, velocity is 10 ft/sec, no elevation changes. Water at 20C. What is the length of the smooth pipe |

## Concept of strengthening mechanismsDescribe in your own words the three strengthening mechanisms i.e., grain size reduction, solid solution strengthening, and strain hardening. Be sure to explain how dislocations are involved in each of the strengthening techniques. |

## Compare the head loss for water flow in a steel pipeCompare the head loss for water flow (Q=5 cfs) in a 12 in., 3000 ft. long steel pipe using the darcy-weisbach equation and the hazen-williams formula. |

## Determine the degree of saturation after compactionAfter compaction the void ratio is reduced to 0.60. Determine: (a) Dry and moist unit weights before and after compaction (b) Degree of saturation after compaction. |

## What is the maximum step heightAn open rectangular channel is 50 feet wide, flowing at a depth of 5 feet, and is carrying 1000 cubic feet per second. What is the maximum step height than can be placed into the flow without disturbing the upstream depth, without acting as a chok.. |

## Determine the maximum compression of the springthe 3 kg block is released from rest at A and slides down the smooth parabolic surface. determine the maximum compression of the spring |

## At what u.s standard altitud will hydrogen be neutrala ballon weighing 3.5 lb is 6 ft in diameter. if filled with hydrogen at 18 psia and 60 degrees F and released, at what U.S standard altitud will it be neutral |

## Determine what is the uncertainty in meters in the distanceA laser range finder consists of a laser and a light receiver. It operates by bouncing a laser pulse off a mirror and measuring the time of flight, the time it takes for the pulse to leave the laser, bounce off the mirror and return to the receive.. |

## Calculate critical crack length required to cause fractureWe know that the part has an intial crack of length 0.02 mm, and that the fracture toughness is 55 MPA(m)^1/2If the part is subject to cycle loading of 300 Mpa in tension and compression, calculate (assuming Y1.2, n = 3.4 and C = 2x10^-11 in units .. |

## What will be the bending stiffness of the bridge in a caseA bridge is subjected to a load of 10,000 kN at its mid span, yielding a displacement of 5 millimetres at that location. What will be the bending stiffness of the bridge in this case (make sure the unit is given) |

## Mannering traffic and highway engineeringAn approach to a pretimed signal with a 60 sec cycle has nine vehicles in the queue at the beginning of the effective green. Four of the nine vehicles in the queue are left over from the previous cycle. |

## How much money will be saved in energy each yearAn electric water heater held at 140 °F is kept in a 70 °F room. When purchased, its insulation is equivalent to R-5. An owner puts a 25-ft2 blanket on the water heater, raising its total R value to 15 |

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